#ifndef COMMON_H        #include <minigui/common.h>        #define COMMON_H#endif                                                                                #ifndef MINIGUI_H        #include <minigui/minigui.h>        #define MINIGUI_H#endif                                                                                #ifndef GDI_H        #include <minigui/gdi.h>        #define GDI_H#endif                                                                                #ifndef WINDOW_H        #include <minigui/window.h>        #define WINDOW_H#endif                                                                                #ifndef CONTROL_H        #include <minigui/control.h>        #define CONTROL_H#endif#ifndef MGEXT_H	#include <minigui/mgext.h>	#define MGEXT_H#endifextern HWND NovaSKBWindow(HWND hosting, int x, int y);